The first generation of stars, often called Population III (or Pop III), form from metal-free
primordial gas at redshifts z∼ 30 and below. They dominate the cosmic star-formation …

Abstract The Laser Interferometer Space Antenna (LISA) will be a transformative experiment
for gravitational wave astronomy, and, as such, it will offer unique opportunities to address …

Massive black holes (MBHs) inhabit galactic centres, and power luminous quasars and
active galactic nuclei, shaping their cosmic environment with the energy they produce. The …

The existence of∼ 109M⊙ supermassive black holes (SMBHs) within the first billion years
of the Universe has stimulated numerous ideas for the prompt formation and rapid growth of …

ABSTRACT JWST is discovering star-forming 'candidate'galaxies with photometric redshifts
z> 9 and little attenuation. We model presumptive massive black holes (MBHs) in such …

The detection of GW190521 by the LIGO–Virgo collaboration has revealed the existence of
black holes (BHs) in the pair-instability (PI) mass gap. Here, we investigate the formation of …

We use the moving-mesh code arepo to investigate the effects of different levels of rotation
and turbulence on the fragmentation of primordial gas and the formation of Population III …

Direct collapse black hole (DCBH) formation with mass≳ 105 M⊙ is a promising scenario
for the origin of high-redshift supermassive black holes. It has usually been supposed that …

The quest for high-redshift quasars has led to a series of record-breaking sources, with the
current record holder at z= 7.642. Here, we show how future detections of z> 8 quasars …

While large numbers of supermassive black holes have been detected at z> 6, their origin is
still essentially unclear. Numerical simulations have shown that the conditions for the …